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https://github.com/TomHarte/CLK.git
synced 2024-11-26 23:52:26 +00:00
Restores full pixel output to the Electron.
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a7508bc2ae
commit
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@ -102,9 +102,9 @@ void VideoOutput::output_pixels(unsigned int number_of_cycles) {
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} else {
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unsigned int divider = 1;
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switch(screen_mode_) {
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case 0: case 3: divider = 2; break;
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case 1: case 4: case 6: divider = 4; break;
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case 2: case 5: divider = 8; break;
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case 0: case 3: divider = 1; break;
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case 1: case 4: case 6: divider = 2; break;
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case 2: case 5: divider = 4; break;
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}
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if(!initial_output_target_ || divider != current_output_divider_) {
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@ -128,8 +128,8 @@ void VideoOutput::output_pixels(unsigned int number_of_cycles) {
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if(initial_output_target_) {
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while(number_of_cycles--) {
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get_pixel();
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*reinterpret_cast<uint32_t *>(current_output_target_) = palette_tables_.eighty1bpp[last_pixel_byte_];
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current_output_target_ += 4;
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*reinterpret_cast<uint64_t *>(current_output_target_) = palette_tables_.eighty1bpp[last_pixel_byte_];
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current_output_target_ += 8;
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current_pixel_column_++;
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}
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} else current_output_target_ += 4*number_of_cycles;
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@ -139,8 +139,8 @@ void VideoOutput::output_pixels(unsigned int number_of_cycles) {
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if(initial_output_target_) {
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while(number_of_cycles--) {
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get_pixel();
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.eighty2bpp[last_pixel_byte_];
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current_output_target_ += 2;
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*reinterpret_cast<uint32_t *>(current_output_target_) = palette_tables_.eighty2bpp[last_pixel_byte_];
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current_output_target_ += 4;
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current_pixel_column_++;
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}
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} else current_output_target_ += 2*number_of_cycles;
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@ -150,8 +150,8 @@ void VideoOutput::output_pixels(unsigned int number_of_cycles) {
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if(initial_output_target_) {
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while(number_of_cycles--) {
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get_pixel();
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*current_output_target_ = palette_tables_.eighty4bpp[last_pixel_byte_];
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current_output_target_ += 1;
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.eighty4bpp[last_pixel_byte_];
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current_output_target_ += 2;
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current_pixel_column_++;
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}
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} else current_output_target_ += number_of_cycles;
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@ -161,28 +161,28 @@ void VideoOutput::output_pixels(unsigned int number_of_cycles) {
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if(initial_output_target_) {
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if(current_pixel_column_&1) {
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last_pixel_byte_ <<= 4;
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 2;
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*reinterpret_cast<uint32_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 4;
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number_of_cycles--;
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current_pixel_column_++;
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}
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while(number_of_cycles > 1) {
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get_pixel();
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 2;
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*reinterpret_cast<uint32_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 4;
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last_pixel_byte_ <<= 4;
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 2;
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*reinterpret_cast<uint32_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 4;
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number_of_cycles -= 2;
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current_pixel_column_+=2;
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}
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if(number_of_cycles) {
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get_pixel();
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 2;
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*reinterpret_cast<uint32_t *>(current_output_target_) = palette_tables_.forty1bpp[last_pixel_byte_];
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current_output_target_ += 4;
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current_pixel_column_++;
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}
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} else current_output_target_ += 2 * number_of_cycles;
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@ -192,28 +192,28 @@ void VideoOutput::output_pixels(unsigned int number_of_cycles) {
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if(initial_output_target_) {
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if(current_pixel_column_&1) {
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last_pixel_byte_ <<= 2;
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*current_output_target_ = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 1;
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 2;
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number_of_cycles--;
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current_pixel_column_++;
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}
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while(number_of_cycles > 1) {
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get_pixel();
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*current_output_target_ = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 1;
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 2;
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last_pixel_byte_ <<= 2;
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*current_output_target_ = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 1;
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 2;
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number_of_cycles -= 2;
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current_pixel_column_+=2;
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}
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if(number_of_cycles) {
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get_pixel();
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*current_output_target_ = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 1;
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*reinterpret_cast<uint16_t *>(current_output_target_) = palette_tables_.forty2bpp[last_pixel_byte_];
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current_output_target_ += 2;
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current_pixel_column_++;
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}
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} else current_output_target_ += number_of_cycles;
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@ -299,27 +299,37 @@ void VideoOutput::set_register(int address, uint8_t value) {
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}
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// regenerate all palette tables for now
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#define pack(a, b) static_cast<uint8_t>((a << 4) | (b))
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for(int byte = 0; byte < 256; byte++) {
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uint8_t *target = reinterpret_cast<uint8_t *>(&palette_tables_.forty1bpp[byte]);
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target[0] = pack(palette_[(byte&0x80) >> 4], palette_[(byte&0x40) >> 3]);
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target[1] = pack(palette_[(byte&0x20) >> 2], palette_[(byte&0x10) >> 1]);
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target[0] = palette_[(byte&0x80) >> 4];
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target[1] = palette_[(byte&0x40) >> 3];
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target[2] = palette_[(byte&0x20) >> 2];
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target[3] = palette_[(byte&0x10) >> 1];
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target = reinterpret_cast<uint8_t *>(&palette_tables_.eighty2bpp[byte]);
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target[0] = pack(palette_[((byte&0x80) >> 4) | ((byte&0x08) >> 2)], palette_[((byte&0x40) >> 3) | ((byte&0x04) >> 1)]);
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target[1] = pack(palette_[((byte&0x20) >> 2) | ((byte&0x02) >> 0)], palette_[((byte&0x10) >> 1) | ((byte&0x01) << 1)]);
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target[0] = palette_[((byte&0x80) >> 4) | ((byte&0x08) >> 2)];
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target[1] = palette_[((byte&0x40) >> 3) | ((byte&0x04) >> 1)];
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target[2] = palette_[((byte&0x20) >> 2) | ((byte&0x02) >> 0)];
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target[3] = palette_[((byte&0x10) >> 1) | ((byte&0x01) << 1)];
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target = reinterpret_cast<uint8_t *>(&palette_tables_.eighty1bpp[byte]);
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target[0] = pack(palette_[(byte&0x80) >> 4], palette_[(byte&0x40) >> 3]);
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target[1] = pack(palette_[(byte&0x20) >> 2], palette_[(byte&0x10) >> 1]);
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target[2] = pack(palette_[(byte&0x08) >> 0], palette_[(byte&0x04) << 1]);
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target[3] = pack(palette_[(byte&0x02) << 2], palette_[(byte&0x01) << 3]);
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target[0] = palette_[(byte&0x80) >> 4];
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target[1] = palette_[(byte&0x40) >> 3];
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target[2] = palette_[(byte&0x20) >> 2];
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target[3] = palette_[(byte&0x10) >> 1];
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target[4] = palette_[(byte&0x08) >> 0];
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target[5] = palette_[(byte&0x04) << 1];
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target[6] = palette_[(byte&0x02) << 2];
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target[7] = palette_[(byte&0x01) << 3];
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palette_tables_.forty2bpp[byte] = pack( palette_[((byte&0x80) >> 4) | ((byte&0x08) >> 2)], palette_[((byte&0x40) >> 3) | ((byte&0x04) >> 1)]);
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palette_tables_.eighty4bpp[byte] = pack( palette_[((byte&0x80) >> 4) | ((byte&0x20) >> 3) | ((byte&0x08) >> 2) | ((byte&0x02) >> 1)],
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palette_[((byte&0x40) >> 3) | ((byte&0x10) >> 2) | ((byte&0x04) >> 1) | ((byte&0x01) >> 0)]);
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target = reinterpret_cast<uint8_t *>(&palette_tables_.forty2bpp[byte]);
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target[0] = palette_[((byte&0x80) >> 4) | ((byte&0x08) >> 2)];
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target[1] = palette_[((byte&0x40) >> 3) | ((byte&0x04) >> 1)];
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target = reinterpret_cast<uint8_t *>(&palette_tables_.eighty4bpp[byte]);
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target[0] = palette_[((byte&0x80) >> 4) | ((byte&0x20) >> 3) | ((byte&0x08) >> 2) | ((byte&0x02) >> 1)];
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target[1] = palette_[((byte&0x40) >> 3) | ((byte&0x10) >> 2) | ((byte&0x04) >> 1) | ((byte&0x01) >> 0)];
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}
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#undef pack
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}
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break;
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}
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@ -90,11 +90,11 @@ class VideoOutput {
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uint8_t *ram_;
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struct {
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uint16_t forty1bpp[256];
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uint8_t forty2bpp[256];
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uint32_t eighty1bpp[256];
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uint16_t eighty2bpp[256];
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uint8_t eighty4bpp[256];
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uint32_t forty1bpp[256];
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uint16_t forty2bpp[256];
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uint64_t eighty1bpp[256];
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uint32_t eighty2bpp[256];
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uint16_t eighty4bpp[256];
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} palette_tables_;
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// Display generation.
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